Sun Elves of Ardani by Nina K. Westra

A human mage. An elven soldier. A tenuous bond between enemies.

Living under elven occupation, Kadaki has learned to see the elves for what they truly are: cold-blooded and dangerous. Their fire magic is terrifying, and their disdain for humans makes them casually cruel.
She’s shocked when she finds a familiar face among the soldiers invading her home. Five years ago, she formed an unlikely friendship with one of the elves, Neiryn, in the midst of battle.
But he is not the gentle, misunderstood soul she remembers. He’s arrogant, sarcastic, self-absorbed, uncaring… and far more charming than he has any right to be.
The life of an awkward, reclusive mage is a lonely one. She knows she shouldn’t trust him, but his touch awakens her body in ways she’s never felt before.
When aberrant magic threatens the town, Kadaki is conscripted by the elves to help fight it. But with her magic failing her and the elves holding a knife to her throat, she won’t be able to protect her people alone… and the only person she can turn to is Neiryn.
When she reaches out to him, will he take